456 research outputs found
Decomposition approaches to integration without a measure
Extending the idea of Even and Lehrer [3], we discuss a general approach to
integration based on a given decomposition system equipped with a weighting
function, and a decomposition of the integrated function. We distinguish two
type of decompositions: sub-decomposition based integrals (in economics linked
with optimization problems to maximize the possible profit) and
super-decomposition based integrals (linked with costs minimization). We
provide several examples (both theoretical and realistic) to stress that our
approach generalizes that of Even and Lehrer [3] and also covers problems of
linear programming and combinatorial optimization. Finally, we introduce some
new types of integrals related to optimization tasks.Comment: 15 page
Recommended from our members
Determining compliance with laws requiring the evaluation of public school teachers.
Bipolar Fuzzy Integrals
In decision analysis and especially in multiple criteria decision analysis,
several non additive integrals have been introduced in the last sixty years.
Among them, we remember the Choquet integral, the Shilkret integral and the
Sugeno integral. Recently, the bipolar Choquet integral has been proposed for
the case in which the underlying scale is bipolar. In this paper we propose the
bipolar Shilkret integral and the bipolar Sugeno integral. Moreover, we provide
an axiomatic characterization of all these three bipolar fuzzy integrals.Comment: 15 page
Robust Integrals
In decision analysis and especially in multiple criteria decision analysis,
several non additive integrals have been introduced in the last years. Among
them, we remember the Choquet integral, the Shilkret integral and the Sugeno
integral. In the context of multiple criteria decision analysis, these
integrals are used to aggregate the evaluations of possible choice
alternatives, with respect to several criteria, into a single overall
evaluation. These integrals request the starting evaluations to be expressed in
terms of exact-evaluations. In this paper we present the robust Choquet,
Shilkret and Sugeno integrals, computed with respect to an interval capacity.
These are quite natural generalizations of the Choquet, Shilkret and Sugeno
integrals, useful to aggregate interval-evaluations of choice alternatives into
a single overall evaluation. We show that, when the interval-evaluations
collapse into exact-evaluations, our definitions of robust integrals collapse
into the previous definitions. We also provide an axiomatic characterization of
the robust Choquet integral.Comment: 24 page
Return words of linear involutions and fundamental groups
We investigate the natural codings of linear involutions. We deduce from the
geometric representation of linear involutions as Poincar\'e maps of measured
foliations a suitable definition of return words which yields that the set of
first return words to a given word is a symmetric basis of the free group on
the underlying alphabet . The set of first return words with respect to a
subgroup of finite index of the free group on is also proved to be a
symmetric basis of
Bifix codes and interval exchanges
We investigate the relation between bifix codes and interval exchange
transformations. We prove that the class of natural codings of regular interval
echange transformations is closed under maximal bifix decoding.Comment: arXiv admin note: substantial text overlap with arXiv:1305.0127,
arXiv:1308.539
Passengers and freight mobility with electric vehicles: A methodology to plan green transport and logistic services near port areas
Abstract The paper describes a research, named GRE.ENE.LOG. (from GREen ENErgy to green LOGistic: from the port of Roccella Jonica to the Locride area), which aims to integrate the production of green-energy inside port areas and its consumption to feed Electric Vehicles (EVs) for transport and logistic services. The system is composed by: (i) a "sea-to-grid" technological component harvesting and producing electrical energy from sea waves; (ii) a "green" logistic services based on the use of EVs. This paper is relative to part (ii). One of the main challenge is to promote the use of green-energy resources for freight and people mobility planning involved in the port area. The main task concerns the location of a parking area/distribution center and the optimal design of mobility services, operated by means of EVs, connecting a port with a closer extended (sub)urban area. The mobility services by EV bikes and cars are oriented to the port users; the freight services are oriented to the extended port area. In this context, the paper presents a methodology for the definition of freight logistics and passenger transport services in order to pursue sustainability goals, and a data analysis in the pilot study of Roccella Jonica port, South of Italy
Cultura y patrimonio nacional. Los estudios de Folklore en la Universidad de Buenos Aires
El volumen Cultura y patrimonio nacional. Los estudios de Folklore en la Universidad de Buenos Aires (2020) es el resultado del proyecto UBACyT “El área de estudios de folklore. Su institucionalizaciĂłn en la Universidad de Buenos Aires” (2014-2017) y es parte de la colecciĂłn editorial “Historia y Memoria de la Universidad de Buenos Aires”. A lo largo de los siete capĂtulos que lo componen, se historiza el área de estudios de Folklore en la Universidad de Buenos Aires (y en otros institutos ligados a la misma) dando cuenta de cĂłmo la disciplina articulĂł intereses y preocupaciones sobre el patrimonio cultural de la naciĂłn con proyecciones y transformaciones en el sentido social de las ciencias antropolĂłgicas
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